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PRAGUE, CZECH REPUBLIC - MARCH 14: An air hostess of Korean Air poses in an Airbus A380 operated by Korean Air which stands at Vaclav Havel airport on March 14, 2014 in Prague, Czech Republic. Korean Air Airbus A380, the world's largest passenger jet landed in Prague with passengers for the first time. (Photo by Matej Divizna/Getty Images)

PRAGUE, CZECH REPUBLIC - MARCH 14:  An air hostess of Korean Air poses in an Airbus A380 operated by Korean Air which stands at Vaclav Havel airport on March 14, 2014 in Prague, Czech Republic. Korean Air Airbus A380, the world's largest passenger jet landed in Prague with passengers for the first time.  (Photo by Matej Divizna/Getty Images)